US4137192A
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Liquid crystalline composition
Assignee: Canon Inc
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Filing: 1975-01-23
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Granted: 1979-01-30
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Expires: 1995-01-23
Abstract
Abstract A liquid crystalline composition comprises at least one kind of biphenyl type liquid crystal materials having the positive dielectric anisotropy and at least one kind of other liquid crystal materials. The novel liquid crystalline composition of the present invention possesses extended ranges of the nematic mesomorphic temperature which are significantly larger than those of the individual liquid crystal material of the composition and are stable at a room temperature.
Inventors
- 👤 Yoji Matsufuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:30
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/42; C09K19/44
Claims Analysis
Total Claims: 78
Claim 1
Independent Claim
231 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material represented by the formula (1) and having a positive dielectric anisotropy: ##STR38## wherein R represents an alkyl or an alkoxy group; and (b) at least one other liquid crystal material selected from those liquid crystal materials represented by the formulae (2) to (6): ##STR39## wherein R 1 and R 2 each represents an alkyl, alkoxy, acyloxy or alkoxycarbonyloxy group, and wherein R 3 represents a hydrogen atom or a methyl group; ##STR40## wherein R 4 represents an alkyl or alkoxy group, and wherein R 5 represents a hydrogen atom or a methyl group; ##STR41## wherein R 6 represents a cyano group and R 7 represents an alkyl group having a carbon content of from 3 to 10 or an alkoxy group having a carbon content of from 1 to 9; ##STR42## wherein one of R 8 and R 9 represents an acyloxy or alkoxycarbonyloxy group and the other of R 8 and R 9 represents an alkyl group or an alkoxy group, and wherein the sum of the carbon content, not including carbonyl carbons, in both R 8 and R 9 is not less than 4; and ##STR43## wherein either one of R 10 and R 11 represents a cyano group and the other of R 10 and R 11 represents an alkyl, alkoxy or acyloxy group.
Claim 2
Dependent Claim
231 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material represented by the formula (1) and having a positive dielectric anisotropy: ##STR38## wherein R represents an alkyl or an alkoxy group; and (b) at least one other liquid crystal material selected from those liquid crystal materials represented by the formulae (2) to (6): ##STR39## wherein R 1 and R 2 each represents an alkyl, alkoxy, acyloxy or alkoxycarbonyloxy group, and wherein R 3 represents a hydrogen atom or a methyl group; ##STR40## wherein R 4 represents an alkyl or alkoxy group, and wherein R 5 represents a hydrogen atom or a methyl group; ##STR41## wherein R 6 represents a cyano group and R 7 represents an alkyl group having a carbon content of from 3 to 10 or an alkoxy group having a carbon content of from 1 to 9; ##STR42## wherein one of R 8 and R 9 represents an acyloxy or alkoxycarbonyloxy group and the other of R 8 and R 9 represents an alkyl group or an alkoxy group, and wherein the sum of the carbon content, not including carbonyl carbons, in both R 8 and R 9 is not less than 4; and ##STR43## wherein either one of R 10 and R 11 represents a cyano group and the other of R 10 and R 11 represents an alkyl, alkoxy or acyloxy group.
Claim 3
Dependent Claim
24 words
The liquid crystalline composition as claimed in claim 1, wherein R represents an alkyl group having a carbon content of from 4 to 15.
Claim 4
Dependent Claim
28 words
The liquid crystalline composition as claimed in claim 1, wherein R represents an alkoxy group or an alkyl group having a carbon content of from 4 to 10.
Claim 5
Dependent Claim
28 words
The liquid crystalline composition as claimed in claim 1, wherein R represents an alkyl group or an alkoxy group having a carbon content of from 5 to 8.
Claim 6
Dependent Claim
76 words
The liquid crystalline composition as claimed in claim 1, wherein R 1 and R 2 each represents an alkyl group having a carbon content of from 1 to 9, an alkoxy group having a carbon content of from 1 to 10, an acyloxy group having a carbon content of from 1 to 7 not including the carbonyl carbon, or an alkoxycarbonyloxy group having a carbon content of from 4 to 6 not including the carbonyl carbon.
Claim 7
Dependent Claim
38 words
The liquid crystalline composition as claimed in claim 1, wherein R 4 represents an alkyl group having a carbon content of from 3 to 8, or an alkoxy group having a carbon content of from 4 to 6.
Claim 8
Dependent Claim
62 words
The liquid crystalline composition as claimed in claim 1, wherein R 10 represents a cyano group, and R 11 represents an alkyl group having a carbon content of from 3 to 10, an alkoxy group having a carbon content of from 1 to 8, or an acyloxy group having a carbon content of from 2 to 8 not including the carbonyl carbon.
Claim 9
Dependent Claim
62 words
The liquid crystalline composition as claimed in claim 1, wherein R 11 represents a cyano group, and R 10 represents an alkyl group having a carbon content of from 3 to 8, an alkoxy group having a carbon content of from 1 to 10, or an acyloxy group having a carbon content of from 2 to 9 not including the carbonyl carbon.
Claim 10
Dependent Claim
24 words
The liquid crystalline composition as claimed in claim 1, wherein the liquid crystal material represented by formula (1) is a nematic liquid crystal material.
Claim 11
Dependent Claim
31 words
The liquid crystalline composition as claimed in claim 1, containing from 10 to 99% by weight, based on the weight of the composition, of the liquid crystal material of formula (1).
Claim 12
Dependent Claim
31 words
The liquid crystalline composition as claimed in claim 1, containing from 20 to 95% by weight, based on the weight of the composition, of the liquid crystal material of formula (1).
Claim 13
Dependent Claim
31 words
The liquid crystalline composition as claimed in claim 1, containing from 50 to 90% by weight, based on the weight of the composition, of the liquid crystal material of formula (1).
Claim 14
Dependent Claim
25 words
The liquid crystalline composition as claimed in claim 1, wherein said liquid crystal materials of formulae (2) to (6) exhibit the nematic liquid crystal phase.
Claim 15
Dependent Claim
40 words
The liquid crystalline composition as claimed in claim 1, containing from 1 to 90% by weight, based on the weight of the composition, of at least one of the liquid crystal materials represented by formulae (2) to (4) and (6).
Claim 16
Dependent Claim
68 words
The liquid crystalline composition as claimed in claim 1, containing a material represented by the following formula: ##STR44## wherein R 13 represents a straight chain alkyl group having a carbon content of from 5 to 9 or a straight chain alkoxy group having a carbon content of from 6 to 8 in an amount of not more than 30% by weight based on the weight of the composition.
Claim 17
Dependent Claim
35 words
The liquid crystalline composition as claimed in claim 1, containing a material represented by the following formula: ##STR45## in an amount of not more than 30% by weight based on the weight of the composition.
Claim 18
Dependent Claim
35 words
The liquid crystalline composition as claimed in claim 1, containing a material represented by the following formula: ##STR46## in an amount of not more than 30% by weight based on the weight of the composition.
Claim 19
Dependent Claim
35 words
The liquid crystalline composition as claimed in claim 1, containing a material represented by the following formula: ##STR47## in an amount of not more than 30% by weight based on the weight of the composition.
Claim 20
Dependent Claim
18 words
A liquid crystal display device in which the liquid crystalline composition as defined in claim 1 is used.
Claim 21
Dependent Claim
17 words
An alpha-numerical display device in which the liquid crystalline composition as defined in claim 1 is used.
Claim 22
Dependent Claim
17 words
An image display device in which the liquid crystalline composition as defined in claim 1 is used.
Claim 23
Dependent Claim
16 words
A light valve in which the liquid crystalline composition as defined in claim 1 is used.
Claim 24
Dependent Claim
17 words
A color display device in which the liquid crystalline composition as defined in claim 1 is used.
Claim 25
Dependent Claim
67 words
The liquid crystalline composition as claimed in claim 1 wherein the group represented by each of R 1 , R 2 , R 4 , R 8 , R 9 , the one of R 6 and R 7 which does not represent a cyano group, and the one of R 10 and R 11 which does not represent a cyano group, comprises a straight chain group.
Claim 26
Dependent Claim
39 words
The liquid crystalline composition as claimed in claim 1, wherein when one of R 1 and R 2 represents an acyloxy or alkoxycarbonyloxy group, the other of R 1 and R 2 represents an alkyl or an alkoxy group.
Claim 27
Dependent Claim
38 words
The liquid crystalline composition as claimed in claim 1, wherein R 7 represents an alkyl group having a carbon content of from 6 to 8 or an alkoxy group having a carbon content of from 6 to 8.
Claim 28
Dependent Claim
172 words
A liquid crystalline composition which comprises: (a) from 10 to 99% by weight of a biphenyl type liquid crystal material represented by the following formula (1) and having a positive dielectric anisotropy; and (b) from 1 to 90% by weight of another liquid crystal material represented by the following formula (2), ##STR48## wherein R represents a straight chain alkyl group having a carbon content of from 4 to 15, or a straight chain alkoxy group having a carbon content of from 4 to 10; ##STR49## wherein R 1 and R 2 each represents a straight chain alkyl group having a carbon content of from 1 to 9, a straight chain alkoxy group having a carbon content of from 1 to 10, a straight chain acyloxy group having a carbon content of from 1 to 7 not including the carbonyl carbon, or a straight chain alkoxycarbonyloxy group having a carbon content of from 4 to 6 not including the carbonyl carbon, and wherein R 3 represents a hydrogen atom or a methyl group.
Claim 29
Dependent Claim
172 words
A liquid crystalline composition which comprises: (a) from 10 to 99% by weight of a biphenyl type liquid crystal material represented by the following formula (1) and having a positive dielectric anisotropy; and (b) from 1 to 90% by weight of another liquid crystal material represented by the following formula (2), ##STR48## wherein R represents a straight chain alkyl group having a carbon content of from 4 to 15, or a straight chain alkoxy group having a carbon content of from 4 to 10; ##STR49## wherein R 1 and R 2 each represents a straight chain alkyl group having a carbon content of from 1 to 9, a straight chain alkoxy group having a carbon content of from 1 to 10, a straight chain acyloxy group having a carbon content of from 1 to 7 not including the carbonyl carbon, or a straight chain alkoxycarbonyloxy group having a carbon content of from 4 to 6 not including the carbonyl carbon, and wherein R 3 represents a hydrogen atom or a methyl group.
Claim 30
Dependent Claim
68 words
The liquid crystalline composition as claimed in claim 27, containing a material represented by the following formula: ##STR50## wherein R 13 represents a straight chain alkyl group having a carbon content of from 5 to 9, or a straight chain alkoxy group having a carbon content of from 6 to 8 in an amount of not more than 30% by weight based on the weight of the composition.
Claim 31
Dependent Claim
35 words
The liquid crystalline composition as claimed in claim 27, containing a material represented by the following formula: ##STR51## in an amount of not more than 30% by weight based on the weight of the composition.
Claim 32
Dependent Claim
35 words
The liquid crystalline composition as claimed in claim 27, containing a material represented by the following formula: ##STR52## in an amount of not more than 30% by weight based on the weight of the composition.
Claim 33
Dependent Claim
35 words
The liquid crystalline composition as claimed in claim 27, containing a material represented by the following formula: ##STR53## in an amount of not more than 30% by weight based on the weight of the composition.
Claim 34
Dependent Claim
27 words
The liquid crystalline composition as claimed in claim 27, wherein R 1 and R 2 each represents an alkyl group, an alkoxy group or an acyloxy group.
Claim 35
Dependent Claim
75 words
The liquid crystalline composition as claimed in claim 32, wherein R 1 represents an alkyl group having from 2 to 9 carbon atoms, an alkoxy group having from 1 to 8 carbon atoms, or an acyloxy group having from 1 to 7 carbon atoms not including the carbonyl carbon, and wherein R 2 represents an alkyl group having from 1 to 8 carbon atoms or an alkoxy group having from 1 to 8 carbon atoms.
Claim 36
Dependent Claim
261 words
A liquid crystalline composition which comprises: (a) from 10 to 99% by weight of a biphenyl type liquid crystal material represented by the following formula (1) and having a positive dielectric anisotropy; and (b) from 1 to 90% by weight of a mixture of liquid crystal materials represented by the following formulae (2) and (5), wherein said liquid crystal material of formula (5) is present in said mixture in an amount of from 10 to 50% by weight based on the weight of said mixture, ##STR54## wherein R represents an alkyl group having a carbon content of from 4 to 15, or an alkoxy group having a carbon content of from 4 to 10; ##STR55## wherein R 1 and R 2 each represents an alkyl group having a carbon content of from 1 to 9, an alkoxy group having a carbon content of from 1 to 10, an acyloxy group having a carbon content of from 1 to 7 not including the carbonyl carbon or an alkoxycarbonyloxy group having a carbon content of from 4 to 6 not including the carbonyl carbon; and wherein R 3 represents a hydrogen atom or a methyl group; ##STR56## wherein R 8 and R 9 represents an alkyl group having a carbon content of from 2 to 10, an alkoxy group having a carbon content of from 1 to 8, an acyloxy group having a carbon content of from 1 to 7 not including the carbonyl carbon, or an alkoxycarbonyloxy group having a carbon content of from 3 to 8 not including the carbonyl carbon.
Claim 37
Dependent Claim
261 words
A liquid crystalline composition which comprises: (a) from 10 to 99% by weight of a biphenyl type liquid crystal material represented by the following formula (1) and having a positive dielectric anisotropy; and (b) from 1 to 90% by weight of a mixture of liquid crystal materials represented by the following formulae (2) and (5), wherein said liquid crystal material of formula (5) is present in said mixture in an amount of from 10 to 50% by weight based on the weight of said mixture, ##STR54## wherein R represents an alkyl group having a carbon content of from 4 to 15, or an alkoxy group having a carbon content of from 4 to 10; ##STR55## wherein R 1 and R 2 each represents an alkyl group having a carbon content of from 1 to 9, an alkoxy group having a carbon content of from 1 to 10, an acyloxy group having a carbon content of from 1 to 7 not including the carbonyl carbon or an alkoxycarbonyloxy group having a carbon content of from 4 to 6 not including the carbonyl carbon; and wherein R 3 represents a hydrogen atom or a methyl group; ##STR56## wherein R 8 and R 9 represents an alkyl group having a carbon content of from 2 to 10, an alkoxy group having a carbon content of from 1 to 8, an acyloxy group having a carbon content of from 1 to 7 not including the carbonyl carbon, or an alkoxycarbonyloxy group having a carbon content of from 3 to 8 not including the carbonyl carbon.
Claim 38
Dependent Claim
189 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR57## wherein R represents a straight chain alkyl group having from 4 to 15 carbon atoms or a straight chain alkoxy group having from 4 to 10 carbon atoms; and (b) at least one other liquid crystal material represented by the formula (2): ##STR58## wherein R 1 and R 2 each represents a straight chain alkyl group having 1 to 9 carbon atoms, a straight chain alkoxy group having 1 to 10 carbon atoms, a straight chain acyloxy group having 1 to 7 carbon atoms not including the carbonyl carbon, or a straight chain alkoxycarbonyloxy group having 4 to 6 carbon atoms not including the carbonyl carbon, and wherein R 3 represents a hydrogen atom or a methyl group; and (c) at least one other liquid crystal material represented by the formula (4): ##STR59## wherein either one of R 6 and R 7 represents a cyano group and the other of R 6 and R 7 represents an alkyl, alkoxy, acyloxy or alkoxycarbonyloxy group.
Claim 39
Dependent Claim
189 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR57## wherein R represents a straight chain alkyl group having from 4 to 15 carbon atoms or a straight chain alkoxy group having from 4 to 10 carbon atoms; and (b) at least one other liquid crystal material represented by the formula (2): ##STR58## wherein R 1 and R 2 each represents a straight chain alkyl group having 1 to 9 carbon atoms, a straight chain alkoxy group having 1 to 10 carbon atoms, a straight chain acyloxy group having 1 to 7 carbon atoms not including the carbonyl carbon, or a straight chain alkoxycarbonyloxy group having 4 to 6 carbon atoms not including the carbonyl carbon, and wherein R 3 represents a hydrogen atom or a methyl group; and (c) at least one other liquid crystal material represented by the formula (4): ##STR59## wherein either one of R 6 and R 7 represents a cyano group and the other of R 6 and R 7 represents an alkyl, alkoxy, acyloxy or alkoxycarbonyloxy group.
Claim 40
Dependent Claim
42 words
The liquid crystalline composition as claimed in claim 35, wherein R 6 represents a cyano group, and wherein R 7 represents an alkyl group having from 3 to 10 carbon atoms or an alkoxy group having from 1 to 9 carbon atoms.
Claim 41
Dependent Claim
41 words
The liquid crystalline composition as claimed in claim 35, wherein R 6 represents a cyano group, and R 7 represents an alkyl group having from 6 to 8 carbon atoms or an alkoxy group having from 6 to 8 carbon atoms.
Claim 42
Dependent Claim
71 words
The liquid crystalline composition as claimed in claim 35, wherein R 7 represents a cyano group, and R 6 represents an alkyl group having from 3 to 10 carbon atoms, an alkoxy group having from 1 to 9 carbon atoms, an acyloxy group having from 5 to 8 carbon atoms not including the carbonyl carbon, or an alkoxycarbonyloxy group having from 5 to 8 carbon atoms not including the carbonyl carbon.
Claim 43
Dependent Claim
189 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR60## wherein R represents a straight chain alkyl group having from 4 to 15 carbon atoms or a straight chain alkoxy group having from 4 to 10 carbon atoms group; and (b) at least one other liquid crystal material represented by the formula (2): ##STR61## wherein R 1 and R 2 each represents a straight chain alkyl group having 1 to 9 carbon atoms, a straight chain alkoxy group having 1 to 10 carbon atoms, a straight chain acyloxy group having 1 to 7 carbon atoms not including the carbonyl carbon, or a straight chain alkoxycarbonyloxy group having 4 to 6 carbon atoms not including the carbonyl carbon, and wherein R 3 represents a hydrogen atom or a methyl group; and (c) at least one other liquid crystal material represented by the formula (6): ##STR62## wherein either one of R 10 and R 11 represents a cyano group and the other of R 10 and R 11 represents an alkyl, alkoxy or acyloxy group.
Claim 44
Dependent Claim
189 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR60## wherein R represents a straight chain alkyl group having from 4 to 15 carbon atoms or a straight chain alkoxy group having from 4 to 10 carbon atoms group; and (b) at least one other liquid crystal material represented by the formula (2): ##STR61## wherein R 1 and R 2 each represents a straight chain alkyl group having 1 to 9 carbon atoms, a straight chain alkoxy group having 1 to 10 carbon atoms, a straight chain acyloxy group having 1 to 7 carbon atoms not including the carbonyl carbon, or a straight chain alkoxycarbonyloxy group having 4 to 6 carbon atoms not including the carbonyl carbon, and wherein R 3 represents a hydrogen atom or a methyl group; and (c) at least one other liquid crystal material represented by the formula (6): ##STR62## wherein either one of R 10 and R 11 represents a cyano group and the other of R 10 and R 11 represents an alkyl, alkoxy or acyloxy group.
Claim 45
Dependent Claim
57 words
The liquid crystalline composition as claimed in claim 39, wherein R 11 represents a cyano group, and wherein R 10 represents an alkyl group having from 3 to 8 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, or an acyloxy group having from 2 to 9 carbon atoms not including the carbonyl carbon.
Claim 46
Dependent Claim
57 words
The liquid crystalline composition as claimed in claim 39, wherein R 10 represents a cyano group, and wherein R 11 represents an alkyl group having from 3 to 10 carbon atoms, an alkoxy group having from 1 to 8 carbon atoms or an acyloxy group having from 2 to 8 carbon atoms not including the carbonyl carbon.
Claim 47
Dependent Claim
41 words
The liquid crystalline composition as claimed in claim 38, wherein R 7 represents a cyano group, and R 6 represents an alkyl group having from 7 to 9 carbon atoms or an alkoxy group having from 5 to 7 carbon atoms.
Claim 48
Dependent Claim
57 words
The liquid crystalline composition as claimed in claim 40, wherein R 11 represents a cyano group, and wherein R 10 represents an alkyl group having from 4 to 7 carbon atoms, an alkoxy group having from 1 to 8 carbon atoms, or an acyloxy group having from 4 to 7 carbon atoms not including the carbonyl carbon.
Claim 49
Dependent Claim
31 words
The liquid crystalline composition as claimed in claim 41, wherein R 10 represents a cyano group, and wherein R 11 represents an alkyl group having from 3 to 8 carbon atoms.
Claim 50
Dependent Claim
76 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR63## wherein R represents an alkyl group; and (b) at least one other liquid crystal material represented by the formula (6): ##STR64## wherein either one of R 10 and R 11 represents a cyano group and the other of R 10 and R 11 represents an alkyl, alkoxy or acyloxy group.
Claim 51
Dependent Claim
76 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR63## wherein R represents an alkyl group; and (b) at least one other liquid crystal material represented by the formula (6): ##STR64## wherein either one of R 10 and R 11 represents a cyano group and the other of R 10 and R 11 represents an alkyl, alkoxy or acyloxy group.
Claim 52
Dependent Claim
22 words
The liquid crystalline composition as claimed in claim 45, wherein R represents an alkyl group having from 4 to 15 carbon atoms.
Claim 53
Dependent Claim
57 words
The liquid crystalline composition as claimed in claim 46, wherein R 10 represents a cyano group, and wherein R 11 represents an alkyl group having from 3 to 10 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, or an acyloxy group having from 2 to 8 carbon atoms not including the carbonyl carbon.
Claim 54
Dependent Claim
56 words
The liquid crystalline composition as claimed in claim 46, wherein R 11 represents a cyano group, and R 10 represents an alkyl group having from 3 to 8 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, or an acyloxy group having from 3 to 9 carbon atoms not including the carbonyl carbon.
Claim 55
Dependent Claim
139 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR65## wherein R represents an alkyl group; (b) at least one other liquid crystal material selected from those liquid crystal materials represented by the formulae (2) and (4): ##STR66## wherein R 1 and R 2 each represents an alkyl or alkoxy group, and R 3 represents a hydrogen atom or a methyl group; ##STR67## wherein R 6 represents a cyano group and R 7 represents an alkyl group having from 3 to 9 carbon atoms or an alkoxy group having from 1 to 7 carbon atoms; and (c) at least one other liquid crystal material represented by the formula (5): ##STR68## wherein R 8 and R 9 each represents an alkyl or alkoxy group.
Claim 56
Dependent Claim
139 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR65## wherein R represents an alkyl group; (b) at least one other liquid crystal material selected from those liquid crystal materials represented by the formulae (2) and (4): ##STR66## wherein R 1 and R 2 each represents an alkyl or alkoxy group, and R 3 represents a hydrogen atom or a methyl group; ##STR67## wherein R 6 represents a cyano group and R 7 represents an alkyl group having from 3 to 9 carbon atoms or an alkoxy group having from 1 to 7 carbon atoms; and (c) at least one other liquid crystal material represented by the formula (5): ##STR68## wherein R 8 and R 9 each represents an alkyl or alkoxy group.
Claim 57
Dependent Claim
53 words
The liquid crystalline composition as claimed in claim 49, wherein R represents an alkyl group having from 4 to 15 carbon atoms, and wherein said R 1 and R 2 each represents an alkyl group having from 1 to 10 carbon atoms or an alkoxy group having from 1 to 10 carbon atoms.
Claim 58
Dependent Claim
60 words
The liquid crystalline composition as claimed in claim 50, wherein R 1 represents an alkyl group having from 1 to 8 carbon atoms or an alkoxy group having from 1 to 6 carbon atoms, and wherein R 2 represents an alkyl group having from 2 to 7 carbon atoms or an alkoxy group having from 2 to 10 carbon atoms.
Claim 59
Dependent Claim
71 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR69## wherein R represents an alkyl or an alkoxy group; and (b) at least one other liquid crystal material represented by the formula (3): ##STR70## wherein R 4 represents an alkyl or alkoxy group, and wherein R 5 represents a hydrogen atom or a methyl group.
Claim 60
Dependent Claim
71 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR69## wherein R represents an alkyl or an alkoxy group; and (b) at least one other liquid crystal material represented by the formula (3): ##STR70## wherein R 4 represents an alkyl or alkoxy group, and wherein R 5 represents a hydrogen atom or a methyl group.
Claim 61
Dependent Claim
59 words
The liquid crystalline composition as claimed in claim 52, wherein R represents an alkyl group having from 4 to 15 carbon atoms or an alkoxy group having from 4 to 10 carbon atoms, and wherein R 4 represents an alkyl group having from 3 to 8 carbon atoms or an alkoxy group having from 4 to 6 carbon atoms.
Claim 62
Dependent Claim
22 words
The liquid crystalline composition as claimed in claim 53, wherein the groups represented by R and R 4 are straight chain groups.
Claim 63
Dependent Claim
50 words
The liquid crystalline composition as claimed in claim 52, containing from 10 to 95 weight percent, based on the weight of the composition, of said material represented by formula (1), and from 90 to 5 weight percent, based on the weight of the composition, of the material of formula (3).
Claim 64
Dependent Claim
50 words
The liquid crystalline composition as claimed in claim 52, containing from 20 to 90 weight percent, based on the weight of the composition, of said material represented by formula (1), and from 80 to 10 weight percent, based on the weight of the composition, of the material of formula (3).
Claim 65
Dependent Claim
97 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR71## wherein R represents an alkyl group having from 4 to 15 carbon atoms or an alkoxy group having from 4 to 10 carbon atoms; and (b) at least one other liquid crystal material represented by the formula (4): ##STR72## wherein R 6 represents a cyano group and R 7 represents an alkyl group having from 3 to 7 carbon atoms or an alkoxy group having from 1 to 9 carbon atoms.
Claim 66
Dependent Claim
97 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR71## wherein R represents an alkyl group having from 4 to 15 carbon atoms or an alkoxy group having from 4 to 10 carbon atoms; and (b) at least one other liquid crystal material represented by the formula (4): ##STR72## wherein R 6 represents a cyano group and R 7 represents an alkyl group having from 3 to 7 carbon atoms or an alkoxy group having from 1 to 9 carbon atoms.
Claim 67
Dependent Claim
22 words
The liquid crystalline composition as claimed in claim 57, wherein the groups represented by R and R 7 are straight chain groups.
Claim 68
Dependent Claim
19 words
The liquid crystalline composition as claimed in claim 57, wherein the groups represented by R are straight chain groups.
Claim 69
Dependent Claim
50 words
The liquid crystalline composition as claimed in claim 57, containing from 10 to 95 weight percent, based on the weight of the composition, of said material represented by formula (1), and from 90 to 5 weight percent, based on the weight of the composition, of the material of formula (4).
Claim 70
Dependent Claim
50 words
The liquid crystalline composition as claimed in claim 57, containing from 30 to 90 weight percent, based on the weight of the composition, of said material represented by formula (1), and from 70 to 10 weight percent, based on the weight of the composition, of the material of formula (4).
Claim 71
Dependent Claim
118 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR73## wherein R represents an alkyl or alkoxy group; and (b) at least one other liquid crystal material represented by the formula (2): ##STR74## wherein R 1 and R 2 each represents an alkyl group, an alkoxy group, an acyloxy group, or an alkoxycarbonyloxy group, and wherein R 3 represents a hydrogen atom or a methyl group; and (c) at least one other liquid crystal material represented by the formula (3): ##STR75## wherein R 4 represents an alkyl or alkoxy group, and wherein R 5 represents a hydrogen atom or a methyl group.
Claim 72
Dependent Claim
118 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material having a positive dielectric anisotropy and represented by the formula (1): ##STR73## wherein R represents an alkyl or alkoxy group; and (b) at least one other liquid crystal material represented by the formula (2): ##STR74## wherein R 1 and R 2 each represents an alkyl group, an alkoxy group, an acyloxy group, or an alkoxycarbonyloxy group, and wherein R 3 represents a hydrogen atom or a methyl group; and (c) at least one other liquid crystal material represented by the formula (3): ##STR75## wherein R 4 represents an alkyl or alkoxy group, and wherein R 5 represents a hydrogen atom or a methyl group.
Claim 73
Dependent Claim
118 words
The liquid crystalline composition as claimed in claim 62, wherein R represents an alkyl group having from 4 to 15 carbon atoms or an alkoxy group having from 4 to 10 carbon atoms, wherein R 1 and R 2 each represents an alkyl group having from 1 to 9 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, an acyloxy group having from 1 to 7 carbon atoms not including the carbonyl carbon or an alkoxycarbonyloxy group having from 4 to 6 carbon atoms not including the carbonyl carbon, and wherein R 4 represents an alkyl group having from 3 to 8 carbon atoms or an alkoxy group having from 4 to 6 carbon atoms.
Claim 74
Dependent Claim
29 words
The liquid crystalline composition as claimed in claim 63, wherein the groups represented by R, R 1 , R 2 , and R 4 are all straight chain groups.
Claim 75
Dependent Claim
142 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material represented by the formula (1) and having a positive dielectric anisotropy: ##STR76## wherein R represents an alkyl or an alkoxy group; and (b) at least one other liquid crystal material represented by the formula (2): ##STR77## wherein R 1 and R 2 each represents an alkyl, alkoxy, acyloxy or alkoxycarbonyloxy group, and wherein R 3 represents a hydrogen atom or a methyl group; (c) at least one other liquid crystal material represented by the formula (3): ##STR78## wherein R 4 represents an alkyl or alkoxy group, and wherein R 5 represents a hydrogen atom or a methyl group; and (d) at least one other liquid crystal material represented by the formula (5): ##STR79## wherein R 8 and R 9 each represents an alkyl, alkoxy, acyloxy or alkoxycarbonyloxy group.
Claim 76
Dependent Claim
142 words
A liquid crystalline composition which comprises: (a) at least one biphenyl liquid crystal material represented by the formula (1) and having a positive dielectric anisotropy: ##STR76## wherein R represents an alkyl or an alkoxy group; and (b) at least one other liquid crystal material represented by the formula (2): ##STR77## wherein R 1 and R 2 each represents an alkyl, alkoxy, acyloxy or alkoxycarbonyloxy group, and wherein R 3 represents a hydrogen atom or a methyl group; (c) at least one other liquid crystal material represented by the formula (3): ##STR78## wherein R 4 represents an alkyl or alkoxy group, and wherein R 5 represents a hydrogen atom or a methyl group; and (d) at least one other liquid crystal material represented by the formula (5): ##STR79## wherein R 8 and R 9 each represents an alkyl, alkoxy, acyloxy or alkoxycarbonyloxy group.
Claim 77
Dependent Claim
177 words
The liquid crystalline composition as claimed in claim 65, wherein R represents an alkyl group having from 4 to 15 carbon atoms or an alkoxy group having from 4 to 10 carbon atoms, wherein R 1 and R 2 each represents an alkyl group having from 1 to 9 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, an acyloxy group having from 1 to 7 carbon atoms not including the carbonyl carbon or an alkoxycarbonyloxy group having from 4 to 6 carbon atoms not including the carbonyl carbon, wherein R 4 represents an alkyl group having from 3 to 8 carbon atoms or an alkoxy group having from 4 to 6 carbon atoms, and wherein R 8 and R 9 each represents an alkyl group having from 2 to 9 carbon atoms, an alkoxy group having from 1 to 8 carbon atoms, an acyloxy group having from 1 to 7 carbon atoms not including the carbonyl carbon, or an alkoxycarbonyloxy group having from 3 to 8 carbon atoms not including the carbonyl carbon.
Claim 78
Dependent Claim
34 words
The liquid crystalline composition as claimed in claim 66, wherein the groups represented by R, R 1 , R 2 , R 4 , R 8 and R 9 are all straight chain groups.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |